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JP2004523685A - Drive medium line for suction jet pump and two methods of fabricating drive medium line - Google Patents

Drive medium line for suction jet pump and two methods of fabricating drive medium line Download PDF

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Publication number
JP2004523685A
JP2004523685A JP2002557562A JP2002557562A JP2004523685A JP 2004523685 A JP2004523685 A JP 2004523685A JP 2002557562 A JP2002557562 A JP 2002557562A JP 2002557562 A JP2002557562 A JP 2002557562A JP 2004523685 A JP2004523685 A JP 2004523685A
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JP
Japan
Prior art keywords
drive medium
medium line
line
mold tool
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002557562A
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Japanese (ja)
Inventor
カール　エック
ケラー ディーター
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Siemens AG
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Siemens AG
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Publication of JP2004523685A publication Critical patent/JP2004523685A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1711—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles and removing excess material from the mould cavity by the introduced fluid, e.g. to an overflow cavity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C2045/1724—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles hollows used as conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4242—Means for deforming the parison prior to the blowing operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/004—Bent tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7172—Fuel tanks, jerry cans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Moulding By Coating Moulds (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Reciprocating Pumps (AREA)

Abstract

サクションジェットポンプのための駆動媒体管路（１）は、湾曲部材（３）と一体的に製作されたノズル（２）を備えている。これによって駆動媒体管路（１）の内側における、渦流を形成し得る段部が回避される。これによってこの駆動媒体管路（１）を有するサクションジェットポンプは、特に高い効率を有している。The drive medium line (1) for the suction jet pump comprises a nozzle (2) integrally formed with the bending member (3). This avoids a step inside the drive medium line (1) that can form a vortex. As a result, the suction jet pump having this drive medium line (1) has a particularly high efficiency.

Description

【０００１】
本発明は、サクションジェットポンプのための駆動媒体管路であって、後続案内する接続管路に接続するための接続部材が設けられており、サクションジェットポンプの混合管路の手前に取り付けるためのノズルが設けられており、ノズルと接続部材とを接続するための湾曲部材が設けられている形式のものに関する。さらに本発明は、駆動媒体管路をプラスチックから製造する有利な方法であって、溶融状態のプラスチックを所定の型工具に導入する方法に関する。さらに本発明は、駆動媒体管路をプラスチックから製造する方法であって、管状の素材を型工具の内側で膨らます方法に関する。
【０００２】
多くの場合そのような駆動媒体管路は、今日の車両において燃料容器の内側で燃料を搬送するために用いられ、実際に公知のものである。接続管路は、燃料ポンプの送り管路にかまたは戻し管路に通じており、この戻し管路を介して燃料が車両の内燃機関から燃料容器に戻される。サクションジェットポンプは、燃料を燃料容器のチャンバから別のチャンバまたはバッフルチャンバに搬送するのに用いられる。この場合湾曲部材は接続部材に接続管路を簡単に取り付けるために、かつ燃料容器におけるスペース条件に関して適合されている。湾曲部材は多くの場合波形に形成されているか、または９０°または１８０°湾曲されている。実際に公知の駆動媒体管路では、湾曲部材は、独立した構成部材として、射出成形法で製作された２つのシェル半部の溶接によって製作される。次いで湾曲部材はノズルに対してプレロード（予荷重）をかけられる。
【０００３】
この場合の欠点によれば、駆動媒体管路における燃料に強い渦流が形成される。これによって駆動媒体管路を備えたサクションジェットポンプの有する効率は極めて僅かとなんっている。
【０００４】
したがって本発明の課題は、冒頭で述べたような形式の駆動媒体管路を改良して、燃料流が特に渦流形成されずに案内されるようなものを提供することである。さらに本発明の課題は、駆動媒体管路を製造するためのできるだけ簡単で経済的な２つの方法を提供することである。
【０００５】
この課題を解決するための本発明の装置によれば、ノズルと湾曲部材と接続部材とが一体的にプラスチックから製作されている。
【０００６】
このような実施形態によって、本発明の駆動媒体管路は、湾曲部材とノズルとの間に段部を有していないので、この位置で燃料流に渦流が形成されない。したがって本発明によれば、燃料が僅かな流れ損失で接続部材からノズルに到達する。これによって本発明の駆動媒体管路を備えたサクションジェットポンプは特に高い効率を有している。さらにノズルと湾曲部材との間の領域における流れの渦流形成が確実に回避されており、これによって本発明の駆動媒体管路を備えたサクションジェットポンプの効率がさらに高められる。
【０００７】
本発明の駆動媒体管路において渦流をさらに減少させるためには、湾曲部材の内面とノズルの内面とが継ぎ目なしに形成されている。
【０００８】
本発明の駆動媒体管路の組み付けを簡素化するためには、湾曲部材および／またはノズルが、隣接する構成部材と結合するために設けられた係止エレメントおよび保持エレメントと一体的に製作されている。
【０００９】
２つ目に記載した課題、つまりプラスチックから駆動媒体管路を製作するための、できるだけ簡単で経済的な方法を提供するという課題を解決するための本発明の方法によれば、型工具の横断面を少なくとも一方の端部において溶融状態のプラスチックで完全に充填し、型工具の壁に沿ってプラスチックが冷却したあとで、型工具のコア領域に存在する液状のプラスチックを、ガス状または液状の媒体によって高圧で押し出す。
【００１０】
この方法によれば、ほぼ任意の形式で形成された湾曲および横断面変化を駆動媒体管路に製作することができる。公知の方法のような駆動媒体管路のシェル部分を溶接することは、本発明では必要としない。これによって本発明の方法は特に少ない作業ステップを有していて、したがって車両のためのサクションジェットポンプの場合のように特に大量生産で極めて安価に用いることができる。この方法の別の利点によれば、駆動媒体管路全体の内壁が、媒体の流れによって成形され、したがって継ぎ目を有していない。これによって燃料流の渦流が、本発明の方法によって形成される駆動媒体管路の内側では特に僅かに維持される。駆動媒体管路に高い要求が課せられる場合、型工具は先ず完全に液状のプラスチックで充填することができる。これによってさらに保持エレメントおよび係止エレメントを製作することができる。
【００１１】
３つ目の課題、すなわち駆動媒体管路を製作するための簡単で経済的な方法を提供するという課題を解決するための本発明の別の方法によれば、駆動媒体管路の長さを有する素材を製作し、該素材を、型工具内で膨らます前に、型工具の外側で駆動媒体管路に応じて予備成形する。
【００１２】
この本発明の方法によって、駆動媒体管路の均等な壁厚が保証される。このことによって駆動媒体管路を製作する際の材料使用量が特に僅かとなっている。この方法で製作された駆動媒体管路は特に平滑な内壁を備えている。これによって駆動媒体管路の内側における燃料流の渦流は特に僅かに維持される。素材を予備成形するために、素材は必要な場合領域ごとに加熱することができる。次いで予備成形された素材は型内で駆動媒体管路に変形させることができる。
【００１３】
本発明は、多くの実施例を許容する。本発明の基本原理を判りやすくするために、幾つかの実施例を図示し、以下に説明する。
【００１４】
図１には、ノズル２と湾曲部材３と接続部材４とを備えた駆動媒体管路１の１実施例が縦断面図で示されており、燃料容器５の、これらに隣接する構成部材が一点鎖線で示されている。駆動媒体管路１はプラスチックから一体的に製作されている。湾曲部材３の外面には、保持エレメント６および係止エレメント７が配置されている。さらに図１には、燃料容器５に配置されたサクションジェットポンプの、ノズル２に向かう混合管８が一点鎖線で示されている。サクションジェットポンプは、たとえば燃料を燃料容器５の１つのチャンバから別の１つのチャンバまたはバッフルチャンバに搬送するのに役立つ。サクションジェットポンプの組付状態では、接続部材４に、混合管８と同じく一点鎖線で示した管路９が被せ嵌められている。管路９はたとえば燃料ポンプの搬送管路の分岐路であってよい。
【００１５】
図２には、駆動媒体管路の別の実施例のための、溶融状態のプラスチック１０で充填された型工具１１が、製作中の状態で示されている。型工具１１の端部には圧力管路１２が接続されている。型内におけるプラスチック１０の冷却に際して先ず縁部領域が硬化する。この縁部領域は製作しようとする駆動媒体管路を成していて、図面では一点鎖線で示されている。縁部領域の設定厚さに達すると、圧力管路１２を介して高圧でガスが型工具１１に圧入される。このガスは、まだ液状でコア領域に存在するプラスチック１０を他方の端部に向かって型工具１１から押し出す。次いで駆動媒体管路は型工具１１から取り出すことができる。駆動媒体管路の外側輪郭は、この方法を用いるとほとんど任意の形式で形成することができ、係止エレメント１３を備えることができる。
【００１６】
図３には、駆動媒体管路の別の実施例のための管状の素材（未加工品）１４と型工具１５の半部とが示されている。素材１４は型工具１５の全長にわたって延びていて、製作しようとする駆動媒体管路に応じて予備成形されている。さらに素材１４は圧力管路に被せ嵌められていて、別の作業過程で型工具１５に挿入することができる。次いで素材１４は圧力管路１６を介して膨らまされ、それも素材１４が均等に型工具１５の内壁に圧着するまで行われる。膨らまされた素材１４を型工具１５から取り出したあとで、駆動媒体管路を完成するために、管路端部が後処理される。
【図面の簡単な説明】
【図１】
本発明の駆動媒体管路の１実施例を示す縦断面図である。
【図２】
コア領域を吹き出す前の、駆動媒体管路のための型工具に導入された、液状のプラスチックを示す図である。
【図３】
駆動媒体管路の別の実施例のための型工具と管状の素材とを示す図である。
【符号の説明】
１ 駆動媒体管路、 ２ ノズル、 ３ 湾曲部材、 ４ 接続部材、 ５ 燃料容器、 ６ 保持エレメント、 ７ 係止エレメント、 ８ 混合管、 ９ 管路、 １０ プラスチック、 １１ 型工具、 １２ 圧力管路、 １３ 係止エレメント、 １４ 素材、 １５ 型工具、 １６ 圧力管路[0001]
The present invention relates to a drive medium line for a suction jet pump, which is provided with a connection member for connecting to a connection line to be guided subsequently, and which is attached to a front side of a mixing line of the suction jet pump. The present invention relates to a type in which a nozzle is provided and a curved member for connecting the nozzle and the connection member is provided. The invention furthermore relates to an advantageous method for producing the drive medium line from plastics, in which the plastics in the molten state is introduced into a given mold tool. The invention further relates to a method of manufacturing the drive medium line from plastic, wherein the tubular material is expanded inside a mold tool.
[0002]
Such drive medium lines are often used in today's vehicles for transporting fuel inside fuel containers and are in fact known. The connecting line leads to the feed line of the fuel pump or to the return line, via which fuel is returned from the internal combustion engine of the vehicle to the fuel container. Suction jet pumps are used to transfer fuel from one chamber of a fuel container to another or baffle chamber. In this case, the bending element is adapted for simple attachment of the connecting line to the connecting element and for the space requirements in the fuel container. The bending members are often corrugated or bent 90 ° or 180 °. In fact, in the known drive medium line, the bending element is produced as a separate component by welding two shell halves produced by injection molding. The bending member is then preloaded on the nozzle.
[0003]
The disadvantage in this case is that a strong vortex is formed in the fuel in the drive medium line. As a result, the efficiency of the suction jet pump with the drive medium line is very low.
[0004]
It is an object of the present invention to improve a drive medium line of the type mentioned at the outset, in which the fuel flow is guided without particular swirling. It is a further object of the present invention to provide two simple and economical methods for manufacturing drive medium lines.
[0005]
According to the device of the present invention to solve this problem, the nozzle, the bending member and the connecting member are integrally made of plastic.
[0006]
With such an embodiment, the drive medium conduit of the present invention does not have a step between the curved member and the nozzle, so that no vortex is formed in the fuel flow at this position. Therefore, according to the present invention, the fuel reaches the nozzle from the connecting member with a small flow loss. As a result, a suction jet pump with a drive medium line according to the invention has a particularly high efficiency. Furthermore, it is ensured that vortex formation of the flow in the region between the nozzle and the bending element is avoided, which further increases the efficiency of the suction jet pump with a drive medium line according to the invention.
[0007]
In order to further reduce the vortex in the drive medium line of the present invention, the inner surface of the curved member and the inner surface of the nozzle are formed seamlessly.
[0008]
In order to simplify the assembly of the drive medium line according to the invention, the bending element and / or the nozzle can be made in one piece with a locking element and a holding element provided for coupling with adjacent components. I have.
[0009]
According to the method of the invention, which solves the second problem, that is to provide an as simple and economical method as possible for producing a drive medium line from plastic, the traversing of a mold tool is achieved. After the surface has been completely filled with the molten plastic at least at one end and the plastic has cooled along the walls of the mold tool, the liquid plastic present in the core area of the mold tool is removed in gaseous or liquid form. Extruded at high pressure by the medium.
[0010]
In this way, curved and cross-sectional variations formed in almost any form can be produced in the drive medium conduit. Welding of the shell part of the drive medium line as in the known method is not required in the present invention. As a result, the method according to the invention has particularly few working steps and can therefore be used very inexpensively, especially in mass production, as in the case of suction jet pumps for vehicles. According to another advantage of this method, the inner wall of the entire drive medium line is shaped by the medium flow and therefore has no seams. As a result, a vortex of the fuel flow is maintained, in particular, slightly inside the drive medium line formed by the method according to the invention. If high demands are made on the drive medium line, the mold tool can first be filled with completely liquid plastic. This makes it possible to produce further holding and locking elements.
[0011]
According to another method of the present invention for solving the third problem, that of providing a simple and economical method for producing a drive medium line, the length of the drive medium line is reduced. The blank is produced and the blank is preformed outside the mold tool according to the drive medium line before being expanded in the mold tool.
[0012]
This method of the invention ensures an even wall thickness of the drive medium line. This results in a particularly low amount of material used when producing the drive medium conduit. The drive medium line produced in this way has a particularly smooth inner wall. As a result, the vortex of the fuel flow inside the drive medium line is maintained particularly low. To preform the blank, the blank can be heated region by region if necessary. The preformed material can then be transformed into a drive medium line in a mold.
[0013]
The invention allows for many embodiments. In order to make the basic principles of the invention easier to understand, some embodiments are shown and described below.
[0014]
FIG. 1 shows, in a longitudinal section, one embodiment of a drive medium line 1 comprising a nozzle 2, a bending member 3 and a connecting member 4, in which the components of a fuel container 5 adjacent thereto are shown. This is indicated by a chain line. The drive medium line 1 is integrally made of plastic. A holding element 6 and a locking element 7 are arranged on the outer surface of the bending member 3. Further, in FIG. 1, the mixing pipe 8 of the suction jet pump arranged in the fuel container 5 toward the nozzle 2 is shown by a dashed line. The suction jet pump serves, for example, to transfer fuel from one chamber of the fuel container 5 to another chamber or baffle chamber. In the assembled state of the suction jet pump, the connecting member 4 is fitted with a conduit 9 indicated by a dashed line like the mixing tube 8. The pipe 9 may be, for example, a branch of a transport pipe of a fuel pump.
[0015]
FIG. 2 shows a mold tool 11 filled with a plastic 10 in a molten state, during manufacture, for another embodiment of the drive medium line. A pressure line 12 is connected to an end of the mold tool 11. Upon cooling of the plastic 10 in the mold, the edge region is first hardened. This edge region forms the drive medium line to be produced and is indicated by dash-dot lines in the drawing. When the set thickness in the edge region is reached, gas is pressed into the mold tool 11 at high pressure via the pressure line 12. This gas pushes the plastic 10 which is still in liquid form and is present in the core region from the mold tool 11 towards the other end. The drive medium line can then be removed from the mold tool 11. The outer contour of the drive medium line can be formed in almost any form using this method and can be provided with a locking element 13.
[0016]
FIG. 3 shows a tubular blank 14 and another half of a mold tool 15 for another embodiment of the drive medium line. The blank 14 extends over the entire length of the mold tool 15 and is preformed according to the drive medium line to be manufactured. Furthermore, the blank 14 is fitted over the pressure line and can be inserted into the mold tool 15 in another working step. The blank 14 is then inflated via the pressure line 16 until the blank 14 is evenly pressed against the inner wall of the tool 15. After removing the inflated blank 14 from the mold tool 15, the end of the line is post-processed to complete the drive medium line.
[Brief description of the drawings]
FIG.
It is a longitudinal section showing one example of a drive medium pipeline of the present invention.
FIG. 2
FIG. 4 shows the liquid plastic introduced into the mold tool for the drive medium line before blowing out the core area.
FIG. 3
FIG. 4 shows a mold tool and a tubular material for another embodiment of the drive medium line.
[Explanation of symbols]
Reference Signs List 1 drive medium line, 2 nozzle, 3 bending member, 4 connection member, 5 fuel container, 6 holding element, 7 locking element, 8 mixing pipe, 9 pipe, 10 plastic, 11 type tool, 12 pressure pipe, 13 locking element, 14 material, 15 tool, 16 pressure line

Claims (5)

サクションジェットポンプのための駆動媒体管路であって、後続案内する接続管路に接続するための接続部材が設けられており、サクションジェットポンプの混合管路の手前に取り付けるためのノズルが設けられており、ノズルと接続部材とを接続するための湾曲部材が設けられている形式のものにおいて、
ノズル（２）と湾曲部材（３）と接続部材（４）とが、プラスチックから一体的に製作されていることを特徴とする、サクションジェットポンプのための駆動媒体管路。A drive medium line for the suction jet pump, which is provided with a connection member for connecting to a connection line for guiding the fuel supply line subsequently, and a nozzle for mounting the mixing member in front of the mixing line of the suction jet pump. In the type in which a bending member for connecting the nozzle and the connection member is provided,
A drive medium line for a suction jet pump, characterized in that the nozzle (2), the bending member (3) and the connecting member (4) are made in one piece from plastic. 湾曲部材（３）の内面とノズルの内面とが、継ぎ目なしに形成されている、請求項１記載の駆動媒体管路。2. The drive medium conduit according to claim 1, wherein the inner surface of the bending member and the inner surface of the nozzle are formed seamlessly. 湾曲部材（３）および／またはノズル（２）が、該湾曲部材および／またはノズルに隣接する構成部材と接続するために設けられた係止エレメント（７，１３）および保持エレメント（６）と一体的に製作されている、請求項１または２記載の駆動媒体管路。The bending element (3) and / or the nozzle (2) are integrated with a locking element (7, 13) and a holding element (6) provided for connecting to a component adjacent to the bending element and / or the nozzle The drive medium line according to claim 1, wherein the drive medium line is manufactured in a special manner. 請求項１から３までのいずれか１項記載の駆動媒体管路をプラスチックから製造する方法であって、溶融状態のプラスチックを所定の型工具に導入する方法において、
型工具を溶融状態のプラスチックで完全に充填し、型工具の壁に沿ってプラスチックが冷却したあとで、型工具のコア領域に存在する液状のプラスチックを、ガス状または液状の媒体によって高圧で押し出すことを特徴とする、駆動媒体管路を製造する方法。A method for producing a drive medium line according to any one of claims 1 to 3 from plastic, wherein the molten plastic is introduced into a predetermined mold tool.
After the mold tool has been completely filled with molten plastic and the plastic has cooled along the walls of the mold tool, the liquid plastic present in the core area of the mold tool is extruded at high pressure by a gaseous or liquid medium. A method for manufacturing a drive medium conduit, characterized by comprising: 請求項１から３までのいずれか１項記載の駆動媒体管路をプラスチックから製造する方法であって、駆動媒体管路の管状の素材を型工具の内側で膨らます方法において、
駆動媒体管路の長さを有する素材を製作し、該素材を型工具内で膨らます前に、型工具の外側で駆動媒体管路に応じて予備成形することを特徴とする、駆動媒体管路を製造する方法。4. A method for producing a drive medium line according to any one of claims 1 to 3 from plastic, wherein the tubular material of the drive medium line is expanded inside a mold tool.
Producing a material having a length of a drive medium line and preforming the material outside the mold tool according to the drive medium line before inflating the material in the mold tool, How to manufacture.
JP2002557562A 2001-01-19 2002-01-18 Drive medium line for suction jet pump and two methods of fabricating drive medium line Pending JP2004523685A (en)

Applications Claiming Priority (2)

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DE10117968A DE10117968A1 (en) 2001-01-19 2001-01-19 Propellant line for a suction jet pump and two methods for producing the propellant line
PCT/DE2002/000142 WO2002057061A2 (en) 2001-01-19 2002-01-18 Pump fluid pipe for an ejector pump and two methods for producing said pump fluid pipe

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EP1926356A1 (en) * 2006-11-22 2008-05-28 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO Product having a solid body and one or more rooms inside
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US20040101416A1 (en) 2004-05-27
DE10117968A1 (en) 2002-08-01
WO2002057061A2 (en) 2002-07-25
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ATE335580T1 (en) 2006-09-15
CN1524034A (en) 2004-08-25

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